YASKAWA CIMR-F7A User Manual

Protective and Diagnostic Functions
7-9
SI-F/G Option Board CPU Failure
SI-F/G Option Board operation failed.
Digital Operator connection is faulty.
Disconnect and then reconnect the
Digital Operator.
Inverter control circuit is faulty. Replace the Inverter.
Digital Operator Communications
Error 1
Communications with the Digital
Operator were not established within 5
seconds after the power was turned
on.
The Digital Operator's connector isn't
connected properly.
Disconnect the Digital Operator
and then connect it again.
The Inverter's control circuits are
faulty.
Replace the Inverter.
CPU External RAM Fault
-
Try turning the power supply off
and on again.
The control circuits were destroyed. Replace the Inverter.
Digital Operator Communications
Error 2
After communications were estab-
lished, there was a communications
error with the Digital Operator for
more than 2 seconds.
The Digital Operator isn't connected
properly.
Disconnect the Digital Operator
and then connect it again.
The Inverter's control circuits are
faulty.
Replace the Inverter.
Baseblock Circuit Error
-
Try turning the power supply off
and on again.
The control circuit is damaged. Replace the Inverter.
EEPROM Error
-
Try turning the power supply off
and on again.
The Inverter power supply was shut
off while writing data to the Inverter
constants.
Initialize the constant settings
(A1-03).
The control circuit is damaged. Replace the Inverter.
CPU Internal A/D Converter Error
-
Try turning the power supply off
and on again.
The control circuit is damaged. Replace the Inverter.
• A short-circuit between +V, −V, and
AC terminals occurred.
• Overload in the control circuit ter-
minal.
• Make sure that incorrect wiring
has not been done.
• Check the resistance and wir-
ing for the frequency setting
potentiometer, etc. (Check that
the current for terminals +V and
–V is 20 mA or less.)
CPU External A/D Converter Error
-
Try turning the power supply off
and on again.
The control circuit is damaged. Replace the Inverter.
• A short-circuit between +V, −V, and
AC terminals occurred.
• Overload in the control circuit ter-
minal.
• Make sure that incorrect wiring
has not been done.
• Check the resistance and wir-
ing for the frequency setting
potentiometer, etc. (Check that
the current for terminals +V and
–V is 20 mA or less.)
Table 7.1 Fault Displays and Processing (Continued)
Display Meaning Probable Causes Corrective Actions

YASKAWA CIMR-F7A Specifications

General

Brand	YASKAWA
Model	CIMR-F7A
Category	Inverter
Language	English